Machine-made sand raw material impurity wet separation device

Abstract

The invention relates to the technical field of machine-made sand screening devices, in particular to a machine-made sand raw material impurity wet separation device which comprises a first roller assembly. The first roller assembly is arranged in the first roller assembly, the second roller assembly is arranged in the second roller assembly, the first roller assembly and the second roller assembly are coaxially and obliquely arranged, and the second roller assembly is installed on the rack through a rolling supporting assembly; the first roller assembly and the second roller assembly are both connected with the reverse driving assembly, and the reverse driving assembly drives the first roller assembly and the second roller assembly to rotate in opposite directions; the feeding assembly is installed on the rack, and the discharging end of the feeding assembly is located in the first roller assembly; and the spraying assembly is installed on the rack, and the spraying end of the spraying assembly is located in the first roller assembly. The machine-made sand dust removal device is beneficial to removing dust in machine-made sand.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanism sand screening devices, and in particular to a wet separation device for impurities in mechanism sand raw materials. Background Art

[0002] Mechanism sand is rock particles with a particle size less than 4.75 mm made by mechanical crushing, screening and other processes. The raw materials are mainly hard rocks such as granite and limestone.

[0003] As the core material of modern architecture, the development of mechanism sand not only alleviates the problem of resource shortage, but also promotes the technological progress and green transformation of the industry. Mechanism sand has the characteristics of high hardness, good wear resistance, high compressive strength, stable chemical properties, etc., and can meet the needs of different fields. Compared with natural sand, it can reduce the exploitation of natural resources and protect the ecological environment. The production process of mechanism sand can be controlled, and the particle size and gradation of sand can be adjusted according to needs. After mechanism sand is crushed, dust needs to be removed, and mechanism sand has many edges and corners and a rough surface, which needs to be optimized through a shaping process. For example, the prior application with the publication number CN216779062U discloses a mechanism sand dust removal device for removing dust in mechanism sand, but after the dust is removed, the mechanism sand still needs to be shaped to improve the surface smoothness of the mechanism sand, which requires additional shaping equipment and increases the manufacturing cost of mechanism sand.

[0004] Therefore, those skilled in the art are committed to developing a wet separation device for impurities in mechanism sand raw materials, which is not only conducive to removing dust in mechanism sand, but also used for surface shaping of mechanism sand. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a wet separation device for impurities in mechanism sand raw materials, which is not only conducive to removing dust in mechanism sand, but also used for surface shaping of mechanism sand. The technical solution of the present invention to solve the above technical problems is as follows: A wet separation device for impurities in mechanism sand raw materials, comprising A first drum assembly; A second drum assembly, the first drum assembly is arranged inside the second drum assembly, and the first drum assembly and the second drum assembly are arranged coaxially and obliquely. The second drum assembly is installed on the frame through a rolling support assembly; A reverse drive assembly, the first drum assembly and the second drum assembly are both connected with the reverse drive assembly, and the reverse drive assembly drives the first drum assembly and the second drum assembly to rotate in opposite directions; A feeding assembly, the feeding assembly is installed on the frame, and the discharging end of the feeding assembly is located inside the first drum assembly; A spray component, which is installed on the frame, and the spray end of the spray component is located inside the first drum component.

[0006] The beneficial effects of adopting the above solution are as follows: The reverse drive component drives the first drum component and the second drum component to rotate, causing the manufactured sand to have strong tumbling and friction effects inside the drum. Coupled with the water flow impact of the spray component, it can more effectively remove impurities such as dust in the manufactured sand, improve the separation efficiency and quality, and ensure that the purity of the manufactured sand meets the requirements of industries such as construction. At the same time, when the manufactured sand is screened inside the first drum component, the mutual friction, collision between particles, and the flushing of the water flow contribute to a certain degree of grinding and shaping of the edges and corners of the manufactured sand. The first drum component is also used for screening the manufactured sand.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Further, the first drum component includes a first drum, and a plurality of first discharge holes are arranged at intervals on the outer periphery of the first drum, and grinding balls are placed inside the first drum. A end cover is installed at the end of the first drum and close to the reverse drive component side, and a drive shaft is connected to the end cover, and the drive shaft is connected to the reverse drive component.

[0009] The beneficial effects of adopting the above further solution are as follows: The first discharge holes facilitate the discharged manufactured sand that meets the particle size requirements to enter the drum component, and the manufactured sand with larger particles is left in the first drum and is further ground into small particles under the action of the subsequent grinding balls, thereby preventing large particles from entering the second drum component.

[0010] Further, stirring bumps are also arranged on the outer periphery of the first drum.

[0011] The beneficial effects of adopting the above further solution are as follows: The stirring bumps cause the manufactured sand to have a stronger tumbling and stirring effect when rotating with the drum inside the second drum, enhancing the friction between the manufactured sand particles, being more conducive to removing surface impurities, and also contributing to further grinding of the particle edges and corners, improving the surface smoothness of the manufactured sand.

[0012] Further, the second drum component includes a second drum, and a plurality of second discharge holes are arranged at intervals on the outer periphery of the second drum, and the diameter of the second discharge holes is smaller than the diameter of the first discharge holes. The end of the second drum is connected to the reverse drive component through a connecting block.

[0013] The beneficial effects of adopting the above further scheme are as follows: After the small particle machine-made sand is screened into the second drum, the reverse drive assembly drives the first drum and the second drum to rotate in opposite directions, so that the small particle machine-made sand is further ground into machine-made sand with a particle size meeting the requirements; Moreover, the first drum and the second drum rotating in opposite directions grind the edges and corners on the surface of the machine-made sand smooth, and the dust generated by grinding is driven by the flushing assembly; At the same time, the first drum and the second drum rotating in opposite directions ensure the stability of the entire separation and shaping process.

[0014] Furthermore, the rolling support assembly includes rolling support wheels. A plurality of the rolling support wheels are arranged on the connection of the second drum assembly, and the rolling support wheels are installed on the frame through mounting brackets.

[0015] The beneficial effects of adopting the above further scheme are as follows: The rolling support wheels are arranged to support the second drum assembly, which can evenly disperse the weight of the second drum assembly and the forces generated during operation, improve the support stability, reduce vibration, ensure the smooth operation of the device, and extend the service life. The mounting brackets facilitate the installation, adjustment and replacement of the rolling support wheels, which is beneficial to maintenance and repair, and ensures the long-term stable operation of the device.

[0016] Furthermore, a water collecting tank is installed between the second drum assembly and the frame. The rolling support assembly is installed on the water collecting tank, and a conveying trough is arranged at the output end of the water collecting tank; A water baffle is also arranged between the output end of the second drum assembly and the water collecting tank.

[0017] The beneficial effects of adopting the above further scheme are as follows: The water collecting tank can collect the waste water generated during the separation process, which is convenient for subsequent centralized treatment or recycling, improves the utilization rate of water resources, reduces production costs, and keeps the working environment clean at the same time; The water baffle can prevent the water at the output end of the drum from splashing everywhere, and separate the waste water from the finished machine-made sand to avoid the generation of new impurities by subsequent mixing.

[0018] Furthermore, the reverse drive assembly includes a driving gear. The driving gear is installed in the middle of the drive shaft. The driving gear is meshed with a plurality of planetary gears, and the planetary gears are also meshed with an internal gear ring. The internal gear ring is connected with the connecting block; A pulley is installed at the end of the drive shaft. The pulley is connected with the output end of the reducer through a belt. The reducer is also connected with a power motor, and the power motor is installed on the frame.

[0019] The beneficial effects of adopting the above further solution are as follows: The meshing transmission between the driving gear, the planetary gears and the internal gear ring can achieve precise control of the reverse rotation of the first drum assembly and the second drum assembly, ensuring the accurate relative movement relationship between the two drums and guaranteeing the separation and shaping effects. The combination of the pulley, the belt, the reducer and the power motor can smoothly and efficiently transmit the power of the power source to the drive shaft, and the rotation speed can be adjusted through the reducer to adapt to different production requirements and ensure the reliable operation of the device.

[0020] Furthermore, fixing plates are respectively connected to the sides of multiple said planetary gears through connecting shafts, and a middle hole for the drive shaft to pass through is provided in the middle of the fixing plates.

[0021] The beneficial effects of adopting the above further solution are as follows: The fixing plates can stably support and limit the planetary gears, prevent excessive shaking during transmission, improve the transmission stability, and thus ensure the smooth operation of the entire drive system and enhance the working reliability of the device.

[0022] Furthermore, the feeding assembly includes a feeding funnel, the feeding funnel is installed on the frame, a conveying trough is provided at the output end of the feeding funnel, and the output end of the conveying trough is located inside the first drum assembly. The spraying assembly includes a spraying pipe, the spraying pipe is located inside the first drum assembly, spraying holes are provided on the spraying pipe, and the spraying pipe is connected to a water supply device.

[0023] The beneficial effects of adopting the above further solution are as follows: The conveying trough smoothly and evenly conveys the machine-made sand into the first drum assembly, ensuring the continuity and stability of feeding, avoiding the adverse impact of uneven feeding on the separation effect, and being beneficial to the efficient operation of the entire device. The spraying pipe is located inside the first drum assembly, and the spraying holes on it can evenly spray water on the surface of the machine-made sand, ensuring that each particle can be fully washed, effectively removing impurities, improving the separation effect. The spraying pipe is connected to the water supply device, and can stably obtain water source, ensuring the continuous and normal operation of the spraying system and providing support for the stable operation of the device.

[0024] Furthermore, a first hinge member is provided on the internal gear ring, the two first hinge members are symmetrically arranged, the first hinge member is hinged to a second hinge member, and the other end of the second hinge member is connected to the second drum. The first discharge hole and the second discharge hole are arranged staggeredly, and the high-pressure sprayed water sprays out from the spraying hole, passes through the first discharge hole and impacts on the inner wall of the second drum, causing the second drum to rotate around the first hinge member.

[0025] The beneficial effects of adopting the above further scheme are as follows: In order to reduce the dust generated during the screening of manufactured sand, atomized water droplets are introduced during screening. Through the Brown diffusion effect and inertial collision, dust particles are adsorbed, making them heavier and settling. If it is necessary to improve the atomization effect of the sprayed water, high-pressure water is usually used in combination with atomizing fine holes to achieve atomization. However, the atomizing fine holes are prone to blockage during long-term use. Sometimes, in order to reduce the blockage of the atomizing fine holes, the diameter of the atomizing fine holes is increased. Using large-diameter atomizing fine holes will lead to a decrease in the atomization performance of the sprayed water.

[0026] In this scheme, due to the reverse concentric rotation of the first drum and the second drum, the high-pressure water sprayed from the spray holes impacts the inner wall of the first drum and rebounds, converting the kinetic energy of the sprayed water into the surface energy required for the expansion of the liquid film, forming an extremely thin water layer with an increased surface area, thereby achieving atomization. After the atomized sprayed water is mixed with the manufactured sand, dust particles are adsorbed through the Brown diffusion effect and inertial collision, making them heavier and settling, improving the dust removal effect, and reducing the blockage of the water outlet holes.

[0027] The spray holes provided on the spray pipe are arranged along the length direction of the spray pipe and spray upward, and correspond to the first discharge hole. During the rotation of the first drum, the high-pressure sprayed water sprayed from the spray holes will intermittently spray out from the first discharge hole. When the high-pressure sprayed water sprayed from the spray holes passes through the first discharge hole, due to the staggered arrangement of the first discharge hole and the second discharge hole, the high-pressure sprayed water will impact the inner wall of the second drum. The second drum will rotate around the first hinge under the impact of the high-pressure sprayed water, causing the second drum to vibrate up and down periodically. During the vibration process, impurities or fine manufactured sand blocked in the second discharge hole will be affected by the vibration and thus be effectively shaken off. This not only greatly reduces the possibility of blockage of the second discharge hole, but also causes the gap between the outer wall of the first drum and the inner wall of the second drum to change periodically. This periodic change can generate streamline folding, expand the traversal range of the manufactured sand, and the chaotic perturbation enhances the stirring effect of the manufactured sand. At the same time, under the action of the stirring bumps, the mixing and diffusion ability of the manufactured sand is increased, which is conducive to quickly grinding the edges and corners of the manufactured sand to be smoother, making the particle shape of the manufactured sand more regular, and improving its quality. Moreover, the high-pressure sprayed water sprayed from the first discharge hole will impact the inner wall of the second drum, making the atomized sprayed water further contact and adsorb dust particles with the manufactured sand between the first drum and the second drum. Description of the Drawings

[0028] Figure 1 It is a front view structural diagram of the wet separation device for impurities in manufactured sand raw materials in the first embodiment of the present invention; Figure 2 It is a side view structural diagram of the wet separation device for impurities in manufactured sand raw materials in the first embodiment of the present invention; Figure 3 It is a structural schematic diagram of the first drum assembly in the first embodiment of the present invention; Figure 4 Schematic structural diagram of the second drum assembly and the reverse drive device in the first embodiment of the present invention; Figure 5 Rear view structural diagram of the reverse drive device in the first embodiment of the present invention; Figure 6 Schematic structural diagram of the second embodiment of the present invention.

[0029] In the drawings, the list of components represented by each reference numeral is as follows: 1. First drum assembly; 2. Second drum assembly; 3. Rolling support assembly; 4. Frame; 5. Reverse drive assembly; 6. Feeding assembly; 7. Spraying assembly; 8. First drum; 9. First discharge hole; 10. End cover; 11. Drive shaft; 12. Stirring bump; 13. Second drum; 14. Second discharge hole; 15. Connecting block; 16. Rolling support wheel; 17. Mounting bracket; 18. Water collecting tank; 19. Conveyor trough; 20. Water baffle; 21. Driving gear; 22. Planetary gear; 23. Internal gear ring; 24. Pulley; 25. Reducer; 26. Power motor; 27. Belt; 28. Fixed plate; 29. Intermediate hole; 30. Feeding funnel; 31. Spraying pipe; 32. Conveyor trough for materials; 33. First hinge; 34. Second hinge. Detailed implementation manners

[0030] The principles and features of the present invention will be described below with reference to the drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential direction", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the system or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

[0032] In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0033] In the present invention, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Embodiment 1 As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, a wet separation device for impurities in manufactured sand raw materials includes a first drum assembly 1; a second drum assembly 2, the first drum assembly 1 is arranged inside the second drum assembly 2, and the first drum assembly 1 and the second drum assembly 2 are arranged coaxially and obliquely. The second drum assembly 2 is installed on the frame 4 through a rolling support assembly 3; a reverse drive assembly 5, both the first drum assembly 1 and the second drum assembly 2 are connected with the reverse drive assembly 5, and the reverse drive assembly 5 drives the first drum assembly 1 and the second drum assembly 2 to rotate in opposite directions; a feeding assembly 6, the feeding assembly 6 is installed on the frame 4, and the discharging end of the feeding assembly 6 is located inside the first drum assembly 1; a spraying assembly 7, the spraying assembly 7 is installed on the frame 4, and the spraying end of the spraying assembly 7 is located inside the first drum assembly 1.

[0035] In the present invention, the reverse drive assembly 5 drives the first drum assembly 1 and the second drum assembly 2 to rotate, so that the manufactured sand generates strong tumbling and friction effects inside the drum. With the water flow impact of the spraying assembly 7, it can more effectively remove impurities such as dust in the manufactured sand, improve the separation efficiency and quality, and ensure that the purity of the manufactured sand meets the requirements of industries such as construction.

[0036] As Figure 1 , Figure 2 and Figure 3As shown, in some embodiments, the first drum assembly 1 includes a first drum 8. The outer periphery of the first drum 8 has a plurality of first discharge holes 9 arranged at intervals. The first discharge holes 9 allow the manufactured sand that meets the particle size requirements to be smoothly discharged and enter the second drum assembly 2. Grinding balls are placed inside the first drum 8. During the rotation of the drum, the grinding balls play a grinding role on the manufactured sand, not only grinding the edges and corners of the manufactured sand, but also further grinding the large-particle manufactured sand into small-particle manufactured sand, optimizing the particle shape and size of the manufactured sand. A stirring bump 12 is also provided on the outer periphery of the first drum 8. The stirring bump 12 enables the manufactured sand to generate a stronger tumbling and stirring effect when rotating with the drum in the second drum assembly 2, thereby enhancing the frictional force between the manufactured sand particles, being more conducive to removing surface impurities, and also helping to further polish the particle edges and corners, improving the surface finish of the manufactured sand.

[0037] A end cover 10 is installed at the end of the first drum 8 and close to the reverse drive assembly 5, so that the manufactured sand can only be discharged from the first discharge holes 9. A drive shaft 11 is connected to the end cover 10, and the drive shaft 11 is connected to the reverse drive assembly 5.

[0038] As Figure 1 、 Figure 2 and Figure 4 shown, in another embodiment, the second drum assembly 2 includes a second drum 13. The outer periphery of the second drum 13 has a plurality of second discharge holes 14 arranged at intervals, and the diameter of the second discharge holes 14 is smaller than that of the first discharge holes 9. The second discharge holes 14 are mainly used for discharging waste water. The end of the second drum 13 is connected to the reverse drive assembly 5 through a connecting block 15. After the small-particle manufactured sand is screened into the second drum 13, under the action of the reverse drive assembly 5, the first drum assembly 1 and the second drum assembly 2 rotate in opposite directions, so that the small-particle manufactured sand is further ground in the second drum 13 and finally ground into manufactured sand with a particle size that meets the requirements. At the same time, the oppositely rotating first drum 8 and second drum 13 can also grind the edges and corners of the manufactured sand smooth, and the dust generated during the grinding process can be taken away by the flushing assembly and discharged through the second discharge holes 14. Moreover, this opposite rotation method also helps to ensure the stability of the entire separation and shaping process.

[0039] The rolling support assembly 3 includes a rolling support wheel 16, and a plurality of rolling support wheels 16 are connected to the second roller assembly 2 in a row. The rolling support wheel 16 is installed on the frame 4 through a mounting bracket 17. The rolling support wheel 16 can evenly disperse the weight of the second roller assembly 2 and the impact force generated during operation, effectively improve the stability of the support, reduce vibration, thereby ensuring the stability of the overall operation of the device and extending its service life. The mounting bracket 17 facilitates the installation process of the rolling support wheel 16, and also facilitates the adjustment and replacement operations in subsequent use, providing a strong guarantee for the long-term stable operation of the device. In other embodiments, an elastic support assembly is also installed between the mounting bracket 17 and the frame 4.

[0040] In the embodiment, a water collecting trough 18 is also installed between the second roller assembly 2 and the frame 4, and the rolling support assembly 3 is installed on the water collecting trough 18. The water collecting trough 18 is arranged parallel to the second roller 13. A conveying trough 19 is arranged at the output end of the water collecting trough 18. The water collecting trough 18 is used to collect waste water discharged from the second roller 13 and convey it to the conveying trough 19. A water baffle 20 is also arranged between the output end of the second roller assembly 2 and the water collecting trough 18. The water baffle 20 prevents water at the output end of the roller from splashing everywhere, and at the same time effectively separates the wastewater from the finished machine-made sand product to avoid the generation of new impurities after the two are mixed, which affects the quality of the final product.

[0041] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, the reverse drive assembly 5 includes a driving gear 21, which is installed in the middle of the driving shaft 11. The driving gear 21 is meshed with a plurality of planetary gears 22. In a specific embodiment, the driving gear 21 is meshed with three planetary gears 22. In order to reduce the excessive shaking of the planetary gears 22, thereby improving the stability of the entire transmission system, the sides of the plurality of planetary gears 22 are respectively connected to a fixing plate 28 through a connecting shaft, and the fixing plate 28 has a middle hole 29 in the middle for the driving shaft 11 to pass through. The planetary gear 22 is also meshed with an inner gear ring 23, and the inner gear ring 23 is connected to a connecting block 15. In a specific embodiment, the inner gear ring 23 is evenly spaced with three connecting blocks 15 connected to the second roller 13 to improve the connection strength between the inner gear ring 23 and the second roller 13. A pulley 24 is installed at the end of the driving shaft 11, and the pulley 24 is connected to the output end of the reducer 25 through a belt 27. The reducer 25 is also connected to a power motor 26, and the power motor 26 is installed on the frame 4.

[0042] The control component (not shown in the figure) controls the rotation of the power motor 26. The rotation of the power motor 26 drives the reducer 25, the belt 27, and the pulley 24 to rotate in sequence. The rotation of the pulley 24 drives the drive gear 21, the drive shaft 11, and the first drum 8 to rotate. At the same time, the rotation of the drive gear 21 drives the planetary gear 22 to rotate and drives the internal gear ring 23 to rotate in the opposite direction, thereby driving the second drum 13 to rotate in the opposite direction.

[0043] As Figure 1 , Figure 2 shown, in one embodiment, the feeding component 6 includes a feeding hopper 30. The feeding hopper 30 is installed on the frame 4. The output end of the feeding hopper 30 is provided with a conveying trough 32. The output end of the conveying trough 32 is located inside the first drum assembly 1. The conveying trough 32 facilitates the conveyance of the manufactured sand into the first drum assembly 1 in a stable and uniform manner, ensuring the continuity and stability of the feeding process.

[0044] The spraying component 7 includes a spraying pipe 31. The spraying pipe 31 is located inside the first drum assembly 1. The spraying pipe 31 is provided with spraying holes. The spraying holes facilitate the uniform spraying of clean water into the first drum assembly 1. Moreover, the spraying pipe 31 is connected to a water supply device (not shown in the figure). The water supply device can stably supply water to the spraying system, ensuring the continuous and normal operation of the spraying component 7 during the entire production process, providing a solid guarantee for the stable operation of the device, and ensuring that the separation and shaping processes are not affected by insufficient water supply.

[0045] The working principle of the present invention: The raw material of the manufactured sand is first conveyed to the feeding hopper 30 through a raw material conveying component such as a conveyor belt (not shown in the figure), then enters the conveying trough 32, and is smoothly guided into the internal space of the first drum assembly 1 under the guidance of the conveying trough 32. At the same time, the spraying pipe 31 of the spraying component 7 starts to work, and the water flow is evenly sprayed on the surface of the manufactured sand through the spraying holes. The impact force of the water flow not only helps to loosen and separate impurities such as dust in the manufactured sand, but also can cooperate with the tumbling and friction effects generated by the rotation of the first drum assembly 1 and the second drum assembly 2 to form an efficient impurity removal environment.

[0046] When the power motor 26 rotates and is driven by the reverse drive component 5, the first drum assembly 1 and the second drum assembly 2 start to rotate in opposite directions. The reverse rotation causes the manufactured sand in the first drum assembly 1 to experience strong tumbling and friction effects, increasing the intensity of mutual collision and friction between particles, which helps to remove surface impurities. At the same time, the grinding balls placed inside the first drum 8 and the stirring bumps 12 provided on the outer periphery also actively participate in this process, further enhancing the friction and tumbling effects between particles, grinding and shaping the edges and corners of the manufactured sand to a certain extent, and improving its surface finish.

[0047] The manufactured sand meeting the particle size requirements is inside the first drum assembly 1, discharged through the first discharge hole 9, and smoothly enters the second drum assembly 2. Those manufactured sands with larger particles are left in the first drum 8 and gradually ground into smaller particles under the continuous grinding action of the grinding balls, avoiding the adverse impact on the subsequent treatment process caused by the large-particle manufactured sands entering the second drum assembly 2.

[0048] The manufactured sand entering the second drum assembly 2 continues to undergo the grinding and tumbling effects brought about by the reverse rotation inside the second drum 13, and the edges and corners on the surface of the manufactured sand are further ground smooth, improving the overall quality of the manufactured sand.

[0049] The wastewater generated during the entire separation and shaping process flows towards the water collecting tank 18 under the action of gravity and is transported to the subsequent treatment or recycling system through the conveying trough 19. The water baffle 20 effectively prevents the water at the output end of the drum from splashing everywhere and clearly separates the wastewater from the finished manufactured sand, avoiding the mixing of the two and ensuring the purity of the finished manufactured sand.

[0050] Embodiment 2 As Figure 6 shown, the difference between Embodiment 2 and Embodiment 1 is only that the connecting block 15 is replaced by the first hinge member 33. The two first hinge members 33 are symmetrically arranged along the center of the internal gear ring 23. The first hinge member 33 is hinged with the second hinge member 34, and the other end of the second hinge member 34 is connected to the second drum 13. The first discharge hole 9 and the second discharge hole 14 are arranged staggeredly. The high-pressure spray water sprays out from the spray holes, passes through the first discharge hole 9, and impacts on the inner wall of the second drum 13, causing the second drum 13 to rotate around the first hinge member 33.

[0051] Specifically, when the high-pressure spray water sprayed out from the spray holes passes through the first discharge hole 9 and impacts on the inner wall of the second drum 13, the second drum 13 will rotate around the first hinge member 33 under the impact of the high-pressure spray water. Due to the presence of two symmetrically arranged first hinge members 33, the second drum 13 can only vibrate up and down. During the vibration process, the impurities or fine manufactured sands blocked in the second discharge hole 14 will be affected by the vibration and thus be effectively shaken off. Moreover, the gap between the outer wall of the first drum 8 and the inner wall of the second drum 13 changes intermittently. This intermittent change can significantly improve the friction effect between the drums, thereby further grinding the edges and corners of the manufactured sand smoother.

[0052] Embodiment 3 The difference between the third embodiment and the first and second embodiments lies only in that the frame 4 includes a base, and there are a plurality of support columns on the base, and the support columns are used to support the water collecting tank 18, the feeding assembly 6, etc. A height adjustment assembly is further arranged on the support column, and the height adjustment assembly is used to adjust the support height of the feeding assembly 6 and the water collecting tank 18 and the inclination of the water collecting tank 18, and adjust the inclination of the water collecting tank 18 according to different requirements for the separation of machine-made sand, so as to adjust the inclination angles of the first roller assembly 1 and the second roller assembly 2, and improve the wet separation effect of different types of machine-made sand.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without conflict, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0054] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wet separation device for impurities in the raw materials of manufactured sand, characterized in that: Comprising a first drum assembly (1); A second drum assembly (2), the first drum assembly (1) is disposed within the second drum assembly (2), and the first drum assembly (1) and the second drum assembly (2) are coaxially inclined, and the second drum assembly (2) is mounted on a frame (4) by a rolling support assembly (3); A reverse drive assembly (5), both the first drum assembly (1) and the second drum assembly (2) are connected to the reverse drive assembly (5), and the reverse drive assembly (5) drives the first drum assembly (1) and the second drum assembly (2) to rotate in opposite directions; A feeding assembly (6), the feeding assembly (6) is mounted on the frame (4), and the discharging end of the feeding assembly (6) is located within the first drum assembly (1); A spraying assembly (7), the spraying assembly (7) is mounted on the frame (4), and the spraying end of the spraying assembly (7) is located within the first drum assembly (1).

2. The wet separation device for impurities in the raw materials of manufactured sand according to claim 1, wherein: The first drum assembly (1) includes a first drum (8), the outer periphery of the first drum (8) has a plurality of first discharge holes (9) spaced apart, and grinding balls are placed within the first drum (8); A end cover (10) is mounted on one side of the end of the first drum (8) close to the reverse drive assembly (5), a drive shaft (11) is connected to the end cover (10), and the drive shaft (11) is connected to the reverse drive assembly (5).

3. The wet separation device for impurities in manufactured sand raw materials according to claim 2, wherein: The outer periphery of the first drum (8) is further provided with stirring bumps (12).

4. The wet separation device for impurities in the raw material of manufactured sand according to claim 2, wherein: The second drum assembly (2) includes a second drum (13), the outer periphery of the second drum (13) has a plurality of second discharge holes (14) spaced apart, and the diameter of the second discharge holes (14) is smaller than the diameter of the first discharge holes (9); The end of the second drum (13) is connected to the reverse drive assembly (5) through a connecting block (15).

5. The wet separation device for impurities in manufactured sand raw materials according to claim 1, characterized in that: The rolling support assembly (3) includes rolling support wheels (16), a plurality of the rolling support wheels (16) are arranged on the second drum assembly (2) in a row, and the rolling support wheels (16) are mounted on the frame (4) through mounting brackets (17).

6. The wet separation device for impurities in the raw materials of manufactured sand according to claim 1, characterized in that: A water collecting tank (18) is further mounted between the second drum assembly (2) and the frame (4), the rolling support assembly (3) is mounted on the water collecting tank (18), and a conveying trough (19) is provided at the output end of the water collecting tank (18); A water baffle (20) is further provided between the output end of the second drum assembly (2) and the water collecting tank (18).

7. The wet separation device for impurities in the raw material of manufactured sand according to claim 4, characterized in that: The reverse drive assembly (5) includes a drive gear (21), the drive gear (21) is mounted in the middle of the drive shaft (11), the drive gear (21) is meshed with a plurality of planetary gears (22), the planetary gears (22) are further meshed with an internal gear ring (23), and the internal gear ring (23) is connected to the connecting block (15); A pulley (24) is installed at the end of the drive shaft (11). The pulley (24) is connected to the output end of a speed reducer (25) through a belt (27). The speed reducer (25) is also connected to a power motor (26), and the power motor (26) is installed on the frame (4).

8. The wet separation device for impurities in the raw material of manufactured sand according to claim 7, wherein: Fixed plates (28) are respectively connected to the sides of multiple planet gears (22) through connecting shafts. The middle of the fixed plate (28) has a middle hole (29) for the drive shaft (11) to pass through.

9. The wet separation device for impurities in the raw materials of manufactured sand according to claim 7, wherein: The feeding assembly (6) includes a feeding funnel (30). The feeding funnel (30) is installed on the frame (4). A conveying trough (32) is arranged at the output end of the feeding funnel (30), and the output end of the conveying trough (32) is located inside the first roller assembly (1). The spraying assembly (7) includes a spraying pipe (31). The spraying pipe (31) is located inside the first roller assembly (1). The spraying pipe (31) has spraying holes, and the spraying pipe (31) is connected to a water supply device.

10. The wet separation device for impurities in manufactured sand raw materials according to claim 9, characterized in that: A first hinge member (33) is arranged on the internal gear ring (23). The two first hinge members (33) are symmetrically arranged. The first hinge member (33) is hinged to a second hinge member (34), and the other end of the second hinge member (34) is connected to the second roller (13). The first discharge hole (9) and the second discharge hole (14) are arranged staggeredly. High-pressure spraying water sprays out from the spraying holes, passes through the first discharge hole (9), and impacts on the inner wall of the second roller (13), causing the second roller (13) to rotate around the first hinge member (33).

Images